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Flights Ottawa - St Louis, MO - eDreams Canada

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Discover the cheapest flights from Ottawa to St Louis, MO
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Fri, Nov 6 - Tue, Nov 10
AC
ACDirect
YOW - STL
AC
ACDirect
STL - YOW
796$
757$
Prime price per passenger
Sun, Nov 15 - Sun, Nov 22
AC
ACDirect
YOW - STL
AC
ACDirect
STL - YOW
796$
757$
Prime price per passenger
Wed, Dec 16 - Sat, Dec 19
AC
ACDirect
YOW - STL
AC
ACDirect
STL - YOW
911$
866$
Prime price per passenger
Thu, Nov 26 - Sun, Nov 29
AC
ACDirect
YOW - STL
AC
ACDirect
STL - YOW
1057$
1004$
Prime price per passenger
Fri, Nov 27
AC
ACDirect
YOW - STL
450$
409$
Prime price per passenger
Sat, Dec 12
AC
ACDirect
YOW - STL
513$
488$
Prime price per passenger
Wed, Nov 4
AC
ACDirect
YOW - STL
536$
509$
Prime price per passenger
Mon, Nov 23
AC
ACDirect
YOW - STL
536$
509$
Prime price per passenger
The prices shown on this page were available within the last 20 days for the specified periods and should not be considered the final price offered. Please note that availability and prices are subject to change.

Cheapest time to fly from Ottawa to St Louis, MO

If you’re planning to fly this route soon, keep in mind that the lowest fares are usually available in the middle of October. Take advantage of this period to save on your flight tickets and make the most of your trip. Please note that prices may change after your search.
Filter by
week: Oct 19 - Oct 25
Flights from just $387
$393
$387
October
Distance: 1,408 km
Ottawa airports
Ottawa Macdonald-Cartier International Airport (YOW)How far from city centre: 6 km
St Louis, MO airports

FAQs about flights between Ottawa and St Louis, MO

What is the usual price for a ticket from Ottawa to St Louis, MO?
The average ticket price for a flight from Ottawa to St Louis, MO is about $773. This can change depending on travel dates, demand, and how far in advance the flight is booked.
What’s the best way to find cheap flights from Ottawa to St Louis, MO on eDreams?
The lowest current fare from Ottawa to St Louis, MO is $ 409. Thanks to our system, we identify the best options across different airlines and itineraries to combine value and flexibility for your journey.
When is the right time to book flights from Ottawa to St Louis, MO?
The top months when travelers usually book a ticket from Ottawa to St Louis, MO are January, February and March, based on search trends from our platform.
When is the best season to travel from Ottawa to St Louis, MO?
The best moment to travel to St Louis, MO from Ottawa depends on whether you prioritize price, climate, or avoiding crowds. The busiest travel month is December, followed by November and March. To avoid peak travel, consider going in May, August or April, when demand is lower for the Ottawa - St Louis, MO route.
How many hours is the flight from Ottawa to St Louis, MO?
Flying between Ottawa and St Louis, MO generally takes about 3 h and 50 m, for a distance of approximately 1,407.54 km. Times may vary depending on whether you choose a direct flight or one with layovers.
What’s the weather like in St Louis, MO vs. Ottawa?
In summer, Ottawa experiences average highs of 20º ºC. At the same time, St Louis, MO can reach 26º ºC. In winter, the climate is cooler, averaging -9º ºC in Ottawa compared to 1º ºC in St Louis, MO.

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